package com.ruoyi.framework.web.service;

import javax.annotation.Resource;



import com.ruoyi.common.RSAUtil;
import com.ruoyi.common.core.domain.AjaxResult;
import org.hibernate.validator.internal.util.stereotypes.Lazy;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.authentication.BadCredentialsException;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.stereotype.Component;
import com.ruoyi.common.constant.CacheConstants;
import com.ruoyi.common.constant.Constants;
import com.ruoyi.common.constant.UserConstants;
import com.ruoyi.common.core.domain.entity.SysUser;
import com.ruoyi.common.core.domain.model.LoginUser;
import com.ruoyi.common.core.redis.RedisCache;
import com.ruoyi.common.exception.ServiceException;
import com.ruoyi.common.exception.user.BlackListException;
import com.ruoyi.common.exception.user.CaptchaException;
import com.ruoyi.common.exception.user.CaptchaExpireException;
import com.ruoyi.common.exception.user.UserNotExistsException;
import com.ruoyi.common.exception.user.UserPasswordNotMatchException;
import com.ruoyi.common.utils.DateUtils;
import com.ruoyi.common.utils.MessageUtils;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.common.utils.ip.IpUtils;
import com.ruoyi.framework.manager.AsyncManager;
import com.ruoyi.framework.manager.factory.AsyncFactory;
import com.ruoyi.framework.security.context.AuthenticationContextHolder;
import com.ruoyi.system.service.ISysConfigService;
import com.ruoyi.system.service.ISysUserService;

/**
 * 登录校验方法
 * 
 * @author ruoyi
 */
@Component
public class SysLoginService
{
    @Autowired
    private TokenService tokenService;

    @Resource
    private AuthenticationManager authenticationManager;

    @Autowired
    private RedisCache redisCache;
    
    @Autowired
    private ISysUserService userService;

    @Autowired
    private ISysConfigService configService;




    /**
     * 登录验证
     * 
     *
     *
     * @return 结果
     */
    public String login(String phoneNumber, String phoneCode) {
        //验证手机号格式
        if (!isValidPhoneNumber(phoneNumber)) {
            throw new ServiceException("手机号格式不正确");
        }
        // 验证手机号是否为空
        if (StringUtils.isEmpty(phoneNumber)) {
            throw new UserNotExistsException();
        }

        // 验证手机验证码
        validatePhoneCode(phoneNumber, phoneCode);

        // 用户验证
        Authentication authentication = null;
        try {


            UsernamePasswordAuthenticationToken authenticationToken = new UsernamePasswordAuthenticationToken(phoneNumber,  "admin123");
            AuthenticationContextHolder.setContext(authenticationToken);
            // 该方法会去调用UserDetailsServiceImpl.loadUserByUsername
            authentication = authenticationManager.authenticate(authenticationToken);
        } finally {
            AuthenticationContextHolder.clearContext();
        }

        // 根据手机号获取用户信息
        SysUser sysUser = userService.selectUserByPhoneNumber(phoneNumber);
        if (sysUser == null) {
            throw new UserNotExistsException();
        }

        // 记录登录信息
        AsyncManager.me().execute(AsyncFactory.recordLogininfor(sysUser.getUserName(), Constants.LOGIN_SUCCESS, MessageUtils.message("user.login.success")));
        LoginUser loginUser = (LoginUser) authentication.getPrincipal();
        recordLoginInfo(loginUser.getUserId());

        // 生成token
        return tokenService.createToken(loginUser);
    }

    private boolean isValidPhoneNumber(String phoneNumber) {
        // 检查手机号码格式
        String phonePattern = "^\\d{11}$";
        if (!phoneNumber.matches(phonePattern)) {
            throw new IllegalArgumentException("手机号码格式不正确");
        }

        return true;
    }

    public void validatePhoneCode(String phoneNumber, String phoneCode) {
        String verifyKey = CacheConstants.PHONE_CODE_KEY + phoneNumber;
        Object captchaObj = redisCache.getCacheObject(verifyKey);

        if (captchaObj == null) {
            throw new CaptchaExpireException();
        }

        // 将验证码转换为字符串
        String captcha = captchaObj.toString();

        redisCache.deleteObject(verifyKey);

        if (!phoneCode.equalsIgnoreCase(captcha)) {
            throw new CaptchaException();
        }
    }


    /**
     * 校验验证码
     *
     * @param username 用户名
     * @param code 验证码
     * @param uuid 唯一标识
     * @return 结果
     */
//    public void validateCaptcha(String username, String code, String uuid)
//    {
//        boolean captchaEnabled = configService.selectCaptchaEnabled();
//        if (captchaEnabled)
//        {
//            String verifyKey = CacheConstants.CAPTCHA_CODE_KEY + StringUtils.nvl(uuid, "");
//            String captcha = redisCache.getCacheObject(verifyKey);
//            if (captcha == null)
//            {
//                AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("user.jcaptcha.expire")));
//                throw new CaptchaExpireException();
//            }
//            redisCache.deleteObject(verifyKey);
//            if (!code.equalsIgnoreCase(captcha))
//            {
//                AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("user.jcaptcha.error")));
//                throw new CaptchaException();
//            }
//        }
//    }

    /**
     * 登录前置校验
     * @param username 用户名
     * @param password 用户密码
     */
//    public void loginPreCheck(String username, String password)
//    {
//        // 用户名或密码为空 错误
//        if (StringUtils.isEmpty(username) || StringUtils.isEmpty(password))
//        {
//            AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("not.null")));
//            throw new UserNotExistsException();
//        }
//        // 密码如果不在指定范围内 错误
//        if (password.length() < UserConstants.PASSWORD_MIN_LENGTH
//                || password.length() > UserConstants.PASSWORD_MAX_LENGTH)
//        {
//            AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("user.password.not.match")));
//            throw new UserPasswordNotMatchException();
//        }
//        // 用户名不在指定范围内 错误
//        if (username.length() < UserConstants.USERNAME_MIN_LENGTH
//                || username.length() > UserConstants.USERNAME_MAX_LENGTH)
//        {
//            AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("user.password.not.match")));
//            throw new UserPasswordNotMatchException();
//        }
//        // IP黑名单校验
//        String blackStr = configService.selectConfigByKey("sys.login.blackIPList");
//        if (IpUtils.isMatchedIp(blackStr, IpUtils.getIpAddr()))
//        {
//            AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("login.blocked")));
//            throw new BlackListException();
//        }
//    }

    /**
     * 记录登录信息
     *
     * @param userId 用户ID
     */
    public  void recordLoginInfo(Long userId)
    {
        SysUser sysUser = new SysUser();
        sysUser.setUserId(userId);
        sysUser.setLoginIp(IpUtils.getIpAddr());
        sysUser.setLoginDate(DateUtils.getNowDate());
        userService.updateUserProfile(sysUser);
    }



    private void loginPreChecks(String phonenumber) {
        if (StringUtils.isEmpty(phonenumber)) {
            AsyncManager.me().execute(AsyncFactory.recordLogininfor(phonenumber, Constants.LOGIN_FAIL, MessageUtils.message("not.null")));
            throw new UserNotExistsException();
        }
    }



}
